Methods, systems and apparatus for regulating frequency of generated power using flywheel energy storage systems with varying load and/or power generation
First Claim
1. A method for controlling AC frequency of electrical power being distributed to an electrical distribution network that is connected to one or more electrical loads and to one or more power sources, the frequency control method comprising the steps of:
- electrically coupling an energy storage sub-system to the electrical distribution network, said energy storage sub-system including one or more flywheel energy storage systems;
controlling operation of each of the flywheel energy storage systems responsive to total power being outputted by the one or more power sources and a total load imposed by the one or more loads, so the electrical storage subsystem outputs an amount of electrical energy to the electrical distribution network so as to regulate the AC frequency of the electrical power being distributed to the electrical distribution network so as to be at or about a desired AC frequency.
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Abstract
Featured are methods for regulating the AC frequency of the electrical power be supplied on an electrical distribution system or grid. Such a method includes electrically coupling an energy storage sub-system to the electrical distribution network, where the energy storage sub-system includes one or more flywheel energy storage systems. Also featured as devices, systems and apparatuses embodying such methodologies or for use in implementing such methodologies of the present invention.
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Citations
36 Claims
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1. A method for controlling AC frequency of electrical power being distributed to an electrical distribution network that is connected to one or more electrical loads and to one or more power sources, the frequency control method comprising the steps of:
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electrically coupling an energy storage sub-system to the electrical distribution network, said energy storage sub-system including one or more flywheel energy storage systems;
controlling operation of each of the flywheel energy storage systems responsive to total power being outputted by the one or more power sources and a total load imposed by the one or more loads, so the electrical storage subsystem outputs an amount of electrical energy to the electrical distribution network so as to regulate the AC frequency of the electrical power being distributed to the electrical distribution network so as to be at or about a desired AC frequency. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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14. An AC frequency regulation system for regulating AC frequency of electrical power being distributed to an electrical distribution network that is connected to one or more electrical loads and to one or more power sources, said system comprising:
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a plurality or more of flywheel energy storage systems, the plurality or more of flywheel energy storage systems being electrically coupled to the electrical distribution network;
a controller being operable coupled to each of the flywheel energy storage systems and being responsive to frequency regulation signals generated external to said system; and
wherein said controller is configured and arranged to control operation of each of the plurality or more of flywheel energy storage systems responsive to the frequency regulation signals, so said system one of outputs an amount of electrical energy to the electrical distribution network or absorbs an amount of electrical energy from the electrical distribution network so as to regulate the AC frequency of the electrical power being distributed to the electrical distribution network so as to be at or about a desired AC frequency. - View Dependent Claims (15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 30)
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26. An AC frequency regulation system for regulating AC frequency of electrical power being distributed to an electrical distribution network that is connected to one or more electrical loads and to one or more power sources, said system comprising:
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a plurality or more of flywheel energy storage systems, the plurality or more of flywheel energy storage systems being arranged to form an array, where the array of the plurality or more of flywheel energy storage systems is electrically coupled to the electrical distribution network;
an adjustable load;
a controller being operable coupled to each of the plurality of flywheel energy storage systems of the array and the adjustable load, the controller being responsive to frequency regulation signals generated external to said system; and
wherein said controller is configured and arranged to control operation of each of the plurality or more of flywheel energy storage systems of the array and the adjustable load, responsive to the frequency regulation signals, so said system one of outputs an amount of electrical energy to the electrical distribution network or absorbs an amount of electrical energy from the electrical distribution network so as to regulate the AC frequency of the electrical power being distributed to the electrical distribution network so as to be at or about a desired AC frequency. - View Dependent Claims (27, 28, 29, 31, 32, 33, 34, 35, 36)
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Specification